package com.zzyl.nursing.service.impl;

import cn.hutool.core.util.ObjectUtil;
import cn.hutool.http.HttpUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.alibaba.fastjson2.JSON;
import com.zzyl.nursing.service.WechatServic;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.Map;
@Service
public class WechatServiceImpl implements WechatServic {
    // 登录
    private static final String REQUEST_URL = "https://api.weixin.qq.com/sns/jscode2session?grant_type=authorization_code";

    // 获取token
    private static final String TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential";

    // 获取手机号
    private static final String PHONE_REQUEST_URL = "https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=";
    @Value("${WeChat.appid}")
    private String appid;
    @Value("${WeChat.secret}")
    private String secret;

    @Override
    public String getOpenid(String code) {
        Map<String, Object> paramMap = new HashMap<>();
        paramMap.put("appid", appid);
        paramMap.put("secret", secret);
        paramMap.put("js_code", code);
        String result = HttpUtil.get(REQUEST_URL, paramMap);
        JSONObject entries = JSONUtil.parseObj(result);
        if (ObjectUtil.isNotEmpty(entries.getInt("errcode"))) {
            throw new RuntimeException(entries.getStr("errmsg"));
        }

        String openid = entries.getStr("openid");
        return openid;
    }

    @Override
    public String getPhone(String detailCode) {
        String token = getToken();
        Map<String, Object> paramMap = new HashMap();
        paramMap.put("code", detailCode);
        String result = HttpUtil.post(PHONE_REQUEST_URL + token, JSONUtil.toJsonStr(paramMap));
        JSONObject jsonObject = JSONUtil.parseObj(result);
        if (jsonObject.getInt("errcode") != 0) {
            throw new RuntimeException(jsonObject.getStr("errmsg"));
        }
        return jsonObject.getJSONObject("phone_info").getStr("phoneNumber");
    }

    /**
     * 获取token
     *
     * @return
     */
    private String getToken() {

        Map<String, Object> paramMap = new HashMap<>();
        paramMap.put("appid", appid);
        paramMap.put("secret", secret);
        // 发起请求
        String result = HttpUtil.get(TOKEN_URL, paramMap);
        JSONObject jsonObject = JSONUtil.parseObj(result);
        // 判断接口响应是否出错
        if (ObjectUtil.isNotEmpty(jsonObject.getInt("errcode"))) {
            throw new RuntimeException(jsonObject.getStr("errmsg"));
        }

        String token = jsonObject.getStr("access_token");

        return token;

    }
}


